Signal apparatus.



No. 818,744. PATENTED APR. 24, A1906. C. W. COLEMAN.

SIGNAL APPARATUS. APPLIoATIoN FILED rEB.e,19oe.

5 SHEETS-SHEET 1.

PATENTED APR. 24, 190.6.

C. W. COLEMAN. SIGNAL APPARATUS. APPLICATION FILED FEB.e,1aos.

WITNESSES:

PATENTED APR. 24, 1906.

C. W. COLEMAN. SIGNAL APPARATUS. APPLIUATION FILED PBB.6.1906.

5 SHEETS-SHEET 3.

No. 818,744. PATBNTED APR. 24, l1906.

C. W. COLEMAN. SIGNAL APPARATUS.

APPLICATION FILED PERB, 1908.

5 SHEETS-SHEET 4.

WITNESSES:

No. 818,744. PATBNTED APR. 24, 1906.

C. W. COLEMAN. SIGNAL APPARATUS.

APPLICATION FILED PEB.6.1906.

5 SHEETS-SHEET 5.

l tionary and tion or intermediate position.

A1@iiiviiiaD STATES PATENT OFFICE.

CLARENCE W. COLEMAN,

OF WESTFIELD, NEW JERSEY, ASSIGNOR TO THE HALL SIGNAL COMPANY, A CORPORATION OF`MAIN-E.

SIGNAL APPARATUS.

Specification of Letters Patent.

Patented April 24, 190e.

Apuiicaion and rebrmy e, iao. serai No. 299,684.

To all whom, it' may concern.

Be it known that I, CLARENCE W. COLE- MAN, a citizen of the United States, and a resident of l/Vestiield, in the county of Umori and State of New Jersey, have invented certain new and useful Improvements in Signal Apparatus, of which the following is a specification.

This invention relates to im rovements in signal apparatus especially a apted for use particular arrangement of the parts whereby the power is applied to a thrust rod or piece which actuates the signal. This arrangement makes it possible to apply the powerV of the motor to the signal with a considerable economy of ener y required to move the signal. It also malies it possible to employ a magnet or other device which shall be stahave the function of controlling the connection between the thrust rod or piece and the motor or motor-driven parts.

Some features of the invention are adapted for use in connection with a multip'osition signal which assumes fewer than three positions, such as a two-position signal. Y

In the accompanying drawings, in which like numerals desi ate corresponding parts, the invention is il ustrated in one of its various embodiments and as applied to a threeposition signal.

Figure 1 is a side elevation of the apparatus looking in the direction of the arrow 1 in Fig. 4. Fig. 2 is a section along line 2 2 of Fi 1 looking in the direction of the arrows. Fig. 3 is an assembled view with parts broken away, showing a three-position signal at ca u- Fi .'4 is a front elevation of the apparatus. Fgi L 5 is a detail front elevation showing a modi cation of the actuating connection-to operate the signal. Fig. 6 is a'side elevation looking in the direction of the arrow 6 in Fig. 4. Fig. 7 is a horizontal section along line 7 7 in Fig. 4

looking the direction of the arrows. Fig.

8 is a detail in elevation and partly in section,

showing a cam-piece in cooperation withits thrust-piece.

and showing in dotted lines the power-gear 1() and successive positions of the cam-piece.v

Fig. 10 is a plan view in .section along line 10 10 of Fig. 8 looking in the direction of the arrows. Fig. 11 is a plan view, partly in section, along line 11 11 of Fig. 8 looking in the direction of the arrows. Fig. 12 is a diagram Fig. 9 is a similar View, but looking in the direction of arrow 1 in Fig..4`

showing the signals and circuits for two blocks of a railway.

Referring now to the particular embodiment of the invention as shown in the drawings, the frame ofthe machine consists of the base 1, back ribs 2 and 3, upper yoke 4, and stirrup 5.

6 is an electric motor which drives gearwheel 7, carried on the shaft 8 on vwhich is mounted pinion 9, meshing with the driving gear-wheel 10. The shaft 8 is supported by the uprights 11 and 12, bolted to the stiriup 5 at their lower ends and bolted at their `upper ends to the yoke 4. These uprights 11 and 12 are provided with bearings for the shaft 13, which carries the driving-gear 10.

14 is a three-position signal carried by the post 15 and operated through the signal-actuating connection 16, to which power is applied by the thrust-pieces 17 and 18 respectively, which may have the form of a signalrod 16, as shown in may be in the form of a cord or iieXible connection 64, as shown in Fig. 5. In this latter case the cord is connected at its upper end Figs. 1, 2, 3, and 6, or it with the signal on the blades side of the signal's pivot and at its lower end passes underv These a guide-roller 55 on the main frame. thrust-pieces coperate tlirou li the medium of the floating lever 19, whic is connected by the pivot 20 with the signal-actuating connection and is guided in its up-and-down movement by suitable guides or rollers 21, moving on guidewa s 22, 23 and 24, surrounding the upper ends o thrustlieces 17 and 18, respectively.

ends o the floating lever 19 are connected f the with the thrust-pieces 17 and 18 by links 25 and 26, respectively, which are supported on brackets 27 and 28, fixed to the cam-blocks 33 and 34, respectively. The lower ends of formed .on casings I oo les

- thesev thrust-pieces carry dash-pot cylinders brackets 33 and 34, which in turn are fixed to #the thrust pieces 17 and 18, respectively. These oscillating pieces serve as cam-pieces vand are respectively en aged by cams 35 and 36, fixed on oppositesies of the gear 10.

37 is a catch pivoted-to the end of the eam- -piece 31 opposite its pivot connection and spring-pressed toward the thrust-piece 17 by.

the spring. 38 and is designed toengage the releasable latch 39, formed on the end of the lever 40,I which is ivoted' at 41 to the projecting end of the racket 33; "The lever 4 0 is provided with a roller 42 at its lower end. he catch 37 on the end of. the cam-piece 31 engages the latch 39 to move the thrust-piece 17 upward until the catch 43, pivoted to a sol vertical extension of the bracket 33 and outwardly springressed by the spring 44, engages with the ocking-dog 45, rigid with and operated by the lever 46. This dog 4 5 then serves to vlock the thrust-piece through the medium ofthe catch 43 in its upper position. The'lever 46 is pivoted' at its upper end to theframe at 4-7 and 'swings vertical plane, but is normally held a ainst the roller 42 by means of a counterweig t 48 vWhen the lever 46 is held inward by some force stronger than that exerted by the col-m` terweight 48:against the roller 42 and thev cam-piece 31 is moved upward the thrust'- piece 'and coperatin latching means is moved upward, while t eroller 42 lrolls along the face ofthe lever 46 and maintainsthe latch 39 in engagement with the latch 37.

When the thrust-piece has reached its 4upper* position, the lever 46 ,through the medium-of the dog 45, serves 'to hold the thrust-"ieee locked its elevated position, althoug the cam-piece 31may'have 'ceased to exert alifting pressure on the thrust-piece. It will be i seen, therefore, that the lever 46 controls the gement of the cam-piece 31 with the eng latcv 39 and 'alsov controls the device or 'means for locking the thrust-piece in its elevated position into which it is moved by the cam-piece.

In the preferred arrangement of the mech- .49', against theunder surface ofwhich the cam engages'.

i 35 is the cam coperates with the back and forth in a anism the cam-piece 31 is operated by a cam, and for this purpose has a `cam-face or iange v cam piece 31. In its best form and as 'shown in the drawings the cam 35 is in the form of a roller carrled on a spoke of the power-wheel 10.

When the thrust-piece 17 is in its lower position, cam-piece 31 is normally in its lower position, with its bam-engaging part 49 resting on the cam 35, the catch 37 being below latch 39 about an eighth of an inch to allow for play.

. 51 is an armature at the lower end of the controlling-lever 46 and normally hangs in proximity to the poles of the controlling-mag- Het 521 In the operation of the parts above described the magnet 52 is energized to hold the lever 46 inward, aird the motor is started. Lever 46 bears against roller 42, as above described. As. the power-wheel r10 travels in the direction of the arrow shown in Fi s. 1, 6,

and 9 cam 35 engages with thecamace 49 on the cam-piece 31 and carries oa m-piece 31, bracket 33,i and the thrust-piece 17, to ether with the coperating latch, upward to t epo- 4sition shown in Figs. 8 and 9, latch 49 during their movement being locked in engagement with catch 37. During this movement the cam 35 moves from'one end of the cam-face,

49 to the other, `as illustrated in dotted lines in Fig. 9, and then out fromunder the campiece, whereu on the motor stops. When the cam 35 isengages the cam-piece, the

thrust-piece is supplorted by the 'dog Y45,

43, spring 44 having which engages cato ast the dog45.

ermitted this catch to snap en the lever 46 is release as by 'denergizing magnet 52, the weight on the thrustpiece presses downward on the dog 45, and overcoming the counterweight 48 causes the controllin -lever 46A to swing outward, whereu on the t st-piece, with the arts carried t ereb and the bracket 33, with the parts carriedy thereby, all return to the lower position. If for anyfreason the magnet52 should be denergized and the motor 'stopped before the cam 35 had passed from un er cam 31 and after the thrustiecehad been more or less elevated, nevert eless the thrust-piece would return to its initial position, since the `weight of the thrust-piece would cause the lever 40, already released from lever 46, to swin out of engagement with catch 37. In this casethe Cam-piece 31 Iwould be swung up- 1 ward on its pivot 50 by cam 35 until cam-piece 31 cleared cam 35, whereupon cam-piece 31 would swin back on its ivot and come to rest on the lgnracket 33 Ian with catch 37 beneath latch 39. It will therefore be-seen that `the thrust-piece has a return movement inde- IOQ IIO

g VIIS pendent of the cam 35 and independent of the o lcam-piece 31. 'Rhus it will be seenthat by this arrangement the signal after having been `moved all the way or onlyjust part way to may return to" danger at once degress therefrom.

.ing the circuit-breakers 61 and 62.

as soon as magnet 52is denergized and Withl Magnet 52 has a second armature which l moves from operates circuit-controller 54 to control the circuit of the motor, as will hereinafter a ear. When the magnet is energized, t e circuit-controller 54 is closed, and when it is denergized the circuit-controller opens.

56 is a rod pivoted at its upper end to an L-sha ed lever57, which is pivoted at 58 to the yo e 4.' The rod 56 is pivotally connected at its lower end with a crank-shaft 59, which operates circuit-breakers 60, 61, and 62. 63 is a roller carried on the bracket 27. When the thrust-piece 1,7 rises to the limit of its upward movement and puts the signal to caution, roller 63v comes against the upper end of the lever 57, thereby elevating rod 56 vand opening the circuit-breaker 60 and closv When the magnet 52 is dener ized to ermt the thrust-piece 17 to move ownwar, roller 68 comes against the depending end of lever 57, turning it back on its pivot to its former position, and thereby lowering rod 56, so as to close the circuit-breaker breakers 61 and 62.

\ The mechanism coperating with the thrust-piece 18 for moving the signal from caution to safety is similar to that described as cooperating with the thrustiece 17 and need not be s ecifically described? 36 is the cam-roller cooperating with the cam-piece 32 for thrust-piece 18. lt is fixed on the power-wheel 10 on vthe o posite side from the cam 35 and one hundred and eighty 60 and open circuit- 18, corresponding to the latch 39 pivoted on the thrust-piece 17. 67 is the lever corresponding with the lever 46 and carrying the armature at its lower end controlled by the magnet 68. 69 is the locking-dog on the end of the lever 67, correspondingwith the dog 45 on lever 46 and to lock the thrustpiece 18 in its upper position and arranged to engage with the catch 70. 71 is ,a circuitbreaker rod corresponding with the rod 56 and pivoted at its upper end to lever 72, corresponding to lever 57.

7 3 is the roller `carried by the depending lever of the latch 66, corresponding to roller 42 and operating to engage the lever 67. Rod 71 operates the crank-shaft 74. 76 is a circuit-controller operated b magnet 68. After the motor has elevate thrust-piece 17 to put the signal to Caution the motor is free to continue its rotation to elevate the thrustpiece 1,8. This latter operation will take place when magnet- 68 is energized. When this happens, power-wheel 10 continues its rotation and cam 36 en ages cam-piece 32, which piece connects wit thrust-piece 18 to elevate the same and move the signal from nection or signal-rod a 66 is the latch pivoted on the thrust-pieceA 4thrust-pieces may caution to safety When the magnet `52 is dener ized, thrust-piece 17 isreleased and falls to t ie lower position, and t'he si nal safety to caution When both magnets 52 and 68 are denergized, both thrust-pieces return to their lower positions, and the signal continues its movement l to dangen dividual thrust-pieces has been described. The object ofthe movement of these thrustpieces is to move the signal-actuating confractional amount,

and thereby step the multiposition signal from one indicating position to another.

The transmission of motion from the thrustpieces to the signal-actuating connection is through the me( ium of the floating lever '19. As .one thrust-piece, as 17, rises the other thrust-piece 18, through the medium of the link 26, serves as a fulcrum for the lever 19, pivot 20 of which is raised between the vertical guideways 22 a fractional amount. When the thrust-piece 17 has been moved to the limit of its upward motion, it is locked in that position. 4

The companion thrust-piece-18, which is operated similarly to thrust-piece 17, nowV may move upward and through the medium of the link 26 again actuates the lever 19 and in this operation employs the thrust-piece 17 as its fulcrum through the medium of the link 25. This movement of the thrustiece 18 raises the pivot V20 asecond fractiona distance, and therefore the signal a corresponding fractional amount. y the locking of the thrust-piece -18 in its u per position the ivot 2O and the signal-ro 16 or cord 64 is ocked in this position. The connection of the signal-rod 16 or cord 64 with the signalblade is such that the upward movement of the thrust-piecesmoves the signal first from danger to caution" land second from caution to safety against the counterweight of the signal. Asone or both of the now be released, the signal-o erating .connection 16 returns to its initia position by fractional movements similar to the fractional movements during its lfirst motion, but in the` opposite direction. By releasin both thrust-pieces multaneous ythe pivot 20would immediately return,y due to the counterweight of the signal, to its lower position, which in the embodiment illustrated would throw the signal to danger, or first one thrust-piece might be released, the signal going to caution,

p to this point the opera-` tion and control of the movements of the in-` 17 and 18 si-v IOO IIO

and then the other thrust-piece might bereating signal 14 mal 'dan er princi suppose to stan respective blocks. other pants-associated with the three-position signals 14 and 80 in Fi 1 2 have the same reference-numerals as t e corresponding partsinthe otherfigures. 81 is the trackmagnet for block 77. 82 is the track-magnet for lock 78. The circuit of the controllingma. tro er 84, wire 85, wire 86, magnet 52, and wires 87 and' 88 back to battery 83. Since the signals are normally at safety/ this circuit through the magnet 52 and which is controlled by track-magnet 81 is normally closed. The circuit of the motor 89 for operis from battery 83, wire 90, circuit-controller 54, wire 91, circuit-breaker 60, wire 92, motor 89, wire 88, back to battery 83. This motor-circuit is the circuit which causes the movement from danger to The circuit of the motor which causes the movement from caution"-to safety is from battery 83, through wire 90, circuitcontrollers 54 and 76, wire 93, circuit-breaker 75, wires 94 and 92, 'moto1'89, Wire 88 back to battery 83. Thenormally closed circuit of the signal-magnet 68 is from battery 95 of the following block, wire 96, circuit-controller 97, wire 98, circuit-breaker 99,- wire 100, circuit-breaker 60, wire 101, magnet 68, wires 102, 87, 88, and 103 back to battery 95.

The operation of the circuits is as follows: The thrust pieces are normally locked in their elevated ositions, hol-'ling the signals at safety en a train enters block 77, it shunts track-magnet 81Iand opens at 84 the circuit of the controlling-magnet 52. controlling-magnet 52 is thus denergized, it

at the entrance to their unlocks the locking-dog, holding the thrustpiece 17'inits elevated position, allowing the Athrust-piec`e-17 and the signal 14 'to move downward byv the falling of the signals counterweight. piece 17 also o which breaks t ens the circuit-controller 62, ecircuitthrough controllingvmagnet 68, previously traceaL When signa l p1ece-18 1n elevated position.

`to continue its movementt'o :breaker 61 Y is magnet 68 ls'thus denergized, its armature releases' the locking-dog 69, holfi thrus't- @11 121.16 and allows the signal 14 Sanger, at the same time closing the circuit-breaker 7 5. When the thrust-piece j17'falls, the Y.circuitalso opened and the circuitbreaker is closed. When the trainV passes out of block 77 into block 78, magnet 81 is energized so as to close circuit-controller 84. This energizes the circuit of the s' net 52, as heretofore traced.

thrust-piece 18 falls agnet 52 completes the circuit of the motor heretofore traced through clrcuit-controller 54 and circuit-breaker 60. The motorthereupon ople, vif desired. i They are The motor-magnets and The falling of this thrust-` pleces or of't al-ma'g- 'ters Patent, is-

vrality of campieces -to erates to move the thrust-piece 17 to its elevated osition, where `i't is locked by means of the -atching-dog previously described, the signal, 14 -being, thus positively moved.t'o caution by the operation of the motor, and the circuit-breakers 61 and 62 are restoredto. their normally closed positions and the 'circuit-breaker` 60 is opened, therebg stopping the motor. When the train enters lock-7 8, it also shunts track-magnet 82, which o ens circuit-controller 97 and puts the signa 80 for, block 78- to danger 1 n the same'wa as was described with reference to the signaly14 Circuit-controller 97 and circuit-breaker 99 are in the circuit' of the signal-magnet 68, and this circuit is also ropened at circuit-breaker 99 as soon as signal 80 for'block 78 goes to caution Thusalthough thecircuitofma net 68 has been closed at 62 it remains denergized, and signal 14 is held at caution as ong as thetrain is in block 78. When the train passes out of block 78, circuit-controller 97 closes and signal 8O is put to caution in the same way as has been described with reference to si al 14, thereby closing circuitbreaker 99. glIlhis comletes the 'circuit of signal-magnet '68, whic thencloses circuitvcontroller 76 `and completes the circuit through the motor 89 toA elevate the thrustpiece 18. This circuit, as already traced, [extends through circuit-controllers 54 and 76 and circuit breaker 75, which latter was closed when the piece 18 fell. Thereupon the motor operates positively to ut the s' nal 14.to safety and to lock it t ere .by means of the locking-dog 69 engaging the thrustp iece 18, as heretofore described. When the slgnal reaches safety position, the motor-cir.- cuit is broken at circuit-breaker and the mtor sto s.

. 'e t s a paratus is he ein described in W form, it will be understood that the details of the mechanism ma be variously modiiied without de arti `flrom the scope of theinvention. twill e further understood that the apparatus may successfully be associated 1n conjunction with various arrangements preferred for l shown and ordinary installations'.

The modiication illustrated in Fig. 5, which em4 loys a flexible actuating'connection for .tlii

tage of providmg a downward pullon ,the working .end of the signal connection by means of an upward movement of a thrustat is believed to lie its best e signal, has the peculiar advan- `ec e,Lthus making it possi-ble to .employ a eXlble signal connection without. changing the mode' of operation either of the thrusthe various motor-driven parts.

at I claim, and desire to secure by Let- 1. Ina multiposition signal, the combination cfa signal-actuating connection; .a pluactuate said signal connection; a cam tol engage .each cam-piece g 2. In a multiposition signal -the combination of a flexible signal connection; a plurality of cam-pieces to actuate said flexible signal connection; a cam to engage each campiece and move said signal connection a fractional distance; said signal connection having a return movement independent of the campieces.

3. In a three-position signal, the combination of a signal-actuating connection; two cam-pieces to actuate said signal connection;

a cam to engage each cam-piece and move said signal connection a fractional distance, said signal connection having a return movement independent of the cam-pieces.

4. In a three-position signal, the combination of a flexible signal connection; two campieces to actuate said signal connection; a cam to engage each cam-pieceand move said signal connection a Jfractional distance, said signal connection having a return movement independent of the cam-pieces.

5. In al multi osition signal, the combination of a plura 'ty of thrust-pieces; a campiece to engage each thrust-piece; a camto engage each cam-piece, and lmove its thrustpiece, each thrust-piece having a return movement independent of its cam-piece; a signal-actuating connection; and means connecting the thrust-pieces and said signal-actuating connection to move said connection a `Jfractional distance upon the movement of each thrust-piece.

6. In a multiposition signal, the combination of a plurality of thrust-pieces; a campiece to engage each thrust-piece; a cam to engage each cam-piece and move its thrustpiece, each thrust -piece having a return movement independent of its cam-piece; a flexible signal connection and means connecting the thrust-pieces and said signal connection to move said signal connection a fractional distance upon the movement of each thrust-piece.

7. In a three-position signal,` the combination of two thrust-pieces; a cam-piece to engage each thrust-piece; a cam to engage each cam-piece and move its thrust-piece, each thrust-piecehaving a return movement independent of its cam-piece; a signal-actuating connection; and means connecting the thrustpieces and said signal-actuating connection to move said signal connection a fractional distance upon the movement of each thrustpiece.

S. In a three-position signal, the combination of two thrust-pieces; a cam-piece to engage each thrust-piece a cam to engage each cam-piece and move its thrust-piece; each thrust-piece having a return movement independent of its cam-piece; a flexible' connection; and means connecting the thrust-pieces and said signal connection to move said signal'connection a fractional distance upon the movement of each thrust-piece.

9. In a three-position signal the combination of a floating lever; a signal-actuating connection ivoted to said lever between its ends; two t rust-pieces; means connecting the ends of said lever with the thrust-pieces; a cam-piece to engage each thrust-piece; and a cam to engage each cam-piece and move its thrust-piece, each thrust-piece having a return movement independent of its cam-piece.

10. In a three-position signal the combination of a floatin lever;'a signal-actuating connection pivote to said lever between its ends two thrust-pieces links connecting the ends of said lever with the thrust-pieces; a cam-piece to enga e each thrust-piece and a cam to engage eac cam-piece, and move its thrust-piece, each thrust-piece having a return movement independent of its cam-piece.

11. In a three-position signal, the combination of a floating lever; guiding means for said lever; a signal-actuating connection pivoted to said lever between its ends; two thrust-pieces; means connecting the ends of said lever with the thrust-pieces a cam-piece to engage each thrust-piece and a cam to engage each cam-piece to move its thrust-piece, each thrust-piece having a return movement independent of its cam-piece.'

12. In a three-position signal; the combination of a floating lever; a flexible signal connection; a pivot connection for saidv signal connection between the ends of said lever; guides on said pivot connection; parallel guideways for said guides; two thrustieces; means connecting the ends of said ever with the thrust-pieces; a cam-piece to engage each thrust-piece; and a cam to engage each cam-piece, and move its thrustpiece, each thrust-piece having a return movement independent of its camiece.

13. In a threeosition signal, t e combi-y nation of a floatlng lever; a flexible signal connection; a pivot connection for said sig- 4\nal connection between the ends of said lever; ide-rollers on said pivot connection; paral el guideways for said guide-rollers; two

thrust-pieces; links connectin the ends of saidv lever with thethrust-pieces; a campiece tojengage each thrust-piece and a cam to engagel each cam-piece and move its thrust-piece, each thrust-piece having a return movement independent of its cam-piece.

14. In a multiposition signal, the combi-y nation of a signalactuating connection; a plurality of cam-pieces to actuate said signal connection; a cam to en age each cam-` viprieceyand move said signa connection a actional distance, said signal ,connection lhaving a return`movement independent of` -1ts cam-pieces; and a single motor for. actuating said cams.

IIO

15. The combination oi a thrust-piece; ,a

pivoted cam-piece to engage said thrust' piece; and a cam to engage the cam piece to move the thrust-piece, the thrust-piece having a return movement independent of the cam-plece.

16. The combination of a thrust-piece; a bracket fixed thereto; a cam-piece pivoted at one end to said bracket and adapted to engage said thrust-piece With its opposite en and acam to engag said cam-piece and move the thrust-piece, said thrust-piece having a return movement `independent of the cam-piece.

A v17. The combination of a thrust-piece; a bracket fixed thereto; a cam-piece pivotedv at one end to said-bracket; a catch on the o posite end of the cam-piece to enga e said t st-piece; and a cam to engagejsai campiece and move the thrust-piece,'said thrustvpiecehaving a return movement independent of the cam'- iece.

18. The com ination of a thrust-piece; a

i bracket iixed thereto; a cam-piece pivoted b z said: 4ca -tch; a lever with a stationary crum t'o hold said latch in engagement with said cam-piece; a cam to engagesaidcampiece to move the thrust-piece, said thrustpiece having a return movemei'lt independ-A ent of said camieces. l

2G. The com ination of a thrust-piece;

with a bracket vfixed thereto; acam-piecel pivoted at one end to the bracket; acatch i on the o posite end ofthecam-piece; a re leasable atch on said -thrustpiece ,to beengaged by said catch; a-lever with a station- Y vary fulcrum to hold said latch in engageiiuen't with said cam-piece catch; a Ymagnet'con' trolling said lever; and a cam to engage said;

Cain-plece vto move the' thrust piece; said thrustiece having. a. return movement'in`' depen ent of s aid cam-piece. .5

21. 'I he vcombination of a ,thrust-piece; .Withawbracket xed thereto; v a cam-piece pivoted at one end to .the bracket; acatch onthe o positeend ofthe cam-piece; a li-f leasable atch onsaidthrust-piecefto beengaged bysaid catch; a lever witha stationa'ry fulcrum `to engage said latch tolio'ldit in engagement with said cam piece catch; a camltoengagesaid cam piece to move the,

' thrust- 1ece;, a magnet controllin said le-` ver, ,w 'ch lever, 'when released 'a lows the ieceto 'svi/'Ying on its pivot therebygiving t e thrust-piece an-independent return Y movement from any position'.

122. The combinationr of a thrust-piece;

with a bracket 'fixed thereto; a cam-piece pivoted at one end to the bracket; a catch on the o posite en'd of the cam-piece; a releasable atch on said thrust-piece to be eng'aged by said catch; alever with a stationary fulcrum to hold said latch in engagement with said cam-piece catch; a ma et controlling said lever; means on said ever to lock the thrust-piece at the limit' of 'its initial movement until released by said magnet; and a cam to engage said cam-piece to move the thrust-piece, said thrust-piece having a return movementl independent of said' camiece. P' 23. -The combinationof a thrust piece, with a bracket fixed thereto; a camieee pivoted to said bracket; a releasable atch on said thrust-piece to engage with s'aidcampiece; a rotatable Wheel; and a cam on said Wheel to engage said cam -piece and move said thrust-piece, said thrust-piece having a return movement independent of said camp'iece ,when said latch releases said cam-piece.

24. The-combination of a thrust-piece; an oscillating piece; means for engaging together said oscillating piece and thrustpiece; a stationary magnet controlling saidl means; and a cam for moving saidr oscillating piece and .thrust-piece.

25. In a multiposition signal, the combina- ;tion of a signal-actuating connecti on;-Ya plu- IOO rality of pivoted campieces to actuateisiaid signal connection; a cam to engage each campieceand move said signal connection atractional distance, said sign'al connection having a return movement independent of the cam- 'pieces. Y

2 6. In a three-position signal, the combination of a flexible signal connection; two pivoted cam-pieces to actuate said signal connection; a cam to engage Y each cam-piece and move said signal connection Ya fractional distance, said signal connection'having a return movement independent of each cam-piece..-

'tion of la plurality of thrust-pieces a pivoted 27. In a multiposition signal; the combinario" cam-piece toengage each thrust-piece a cam' to engage each'cam-piece and moveits thrustpiece; each thrust-piece having a return move- ,ment independent of its cam-piece a flexible Vslgnal connection and means connectlngthe' move said signal connectiona fractional distance upon the movement of each thrustpiece. 28. In a three-position signaLthe combina- -tion of axoating lever; meanslfor said' lever; a si al-actuating .connectionpiv- -126 .thrustpieces and saidsignal connection 'tootedv to said ,evenbetween its ends; two .thrnst'-pieces; means ,connecting -the endsp Y A v said lever with-.the thrust-pieces; a pivoted' cam-piece'` to enga e each thrust piece and move the signal, eac thrust-piece having a return movement independent of its cam-piece. 29. In a signal ap aratus, motor operated and upwardlyqnova le actuating means; a flexible signal connection connected with said means at one end and with the signal at its other end; and a fixed guide for said flexible connection/wherebrv a downward movement of the signal end of said flexible connection to move the lsignal is caused by an upward movement ofsaid actuating means.

30. Inv a signal a paratus a signal-post; a signal-blade pivote to said post atone side thereof; power-operated and upwardly-movable actuating means; a flexible signal connection attached at one end to said blade on the post side of its dpivot connection, and at its other end to sai actuating means; and a fixed guide for said flexible connection, whereby the direction of said fiexible connection is changed and an upward movement ofsaid actuating means causes a downward movement of the signal end of said fiexible con nection to move said blade.

31. In a multiposition signal apparatus, the combination of a signal-actuating connection; a plurality of cam-pieces to actuate said signal connection; a cam to engage each campiece and move said signal connection a fractional distance, said signal connection having a return movement independent of the cam-pieces.

y32. In a three-position signal apparatus, the combinationo a signal-actuating connection; two cam-pieces to actuate said signal connection; a cam to engage each cam-piece and move said signal connection afractional distance, said signal connection having a return movement independent of the campieces.

33. In a three'- osition signal apparatus, the combination o a signal-actuating connection; two cam-,pieces to actuate said signal connection; a rotatable power-wheel; a cam fixed to each side of said wheel to engage each cam-piece and move said signal connection a fractional distance, said signal connection having a return movement independent of the'cam-pieces.

34. In a three-position signal apparatus, a motor; a signal-actuating eating lever upwardl)T movable at each end by said motor; a signal-blade; a guide fixed below said floating lever; a flexible si al connection attached at one endA to said oating lever intermediate the ends of said lever, passing down around said guide and attached at its other end to said signal; whereb an upward movement of either end of said lever causes a downwar pull on the signal connection at the end attached to the signal and movesthe signal.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CLARENCE W. COLEMAN.

Witnesses z LEONARD DAY, IDA G. GILMORE. 

